A Canadian study just published in The Lancet shows that those who live near busy roads are more at risk of dementia.

The study by public health scientists lasted for 10 years involved 6.6 million people; it found that one in ten dementia deaths of people living within 50 metres from busy roads could be attributed to fumes and noise. This figure decreased with increased distance from the busy roads. 
According to Dr. Hong Chen, the lead author from Public Health Ontario,: “Our study suggests that busy roads could be a source of environmental stressors that could give rise to the onset of dementia”….
He added that more research to understand the link is needed.
Dementia is a brain disease characterized by loss (death) of brain cells resulting in mental dysfunction such as excessive memory loss, faulty thinking and inability to perform everyday
It affects about 35.6 million persons worldwide according to the World Health Organisation.

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